regulator: dt-bindings: qcom,rpmh: Correct PM8550 family supplies

regulator: dt-bindings: qcom,rpmh: Correct PM8550 family supplies

PM8550 is different than PM8550VE/VS, because the latter has much
smaller amount of supplies (l1-3 and s1-6) and regulators.  The PM8550
has on the other hand one pin for vdd-l1-l4-l10 supplies.  Correct the
if:then: clause with their supplies.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Abel Vesa <abel.vesa@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20230327080626.24200-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>